[TYPO3] sr email subscribe - internal server error

[Ryan Dale]

Hello,

I'm trying to configure the sr_email_subscribe(0.3.1) extension on Typo3 
4.0 and am only running into one problem:
I can fill out the registration form, I can see the confirmation of the 
information, but when I hit 'subscribe now' button I get a 500 internal 
server error page. However, the form seems to process just fine and I 
receive an email with links that work.
The link to confirm the subscription also gives me an Internal server 
error, but does process the subscription.

Here are some relevant configurations:

TS Setup:
#email subscription setup
plugin.tx_sremailsubscribe_pi1._CSS_DEFAULT_STYLE = 
fileadmin/templates/styles.css
config.notification_email_urlmode  = all
#RealURL Setup
config.simulateStaticDocuments = 0
config.baseURL = http://www.mysite.com/typo3-site/
config.tx_realurl_enable = 1
config.prefixLocalAnchors = all

Constants:
plugin.tx_sremailsubscribe.email = www.mysite.com
plugin.tx_sremailsubscribe.siteName = Title of my site
plugin.tx_sremailsubscribe.formFields = 
email,first_name,last_name,address,city,zone,zip,phone,module_sys_dmail_html,module_sys_dmail_category,comments,hidden
plugin.tx_sremailsubscribe.requiredFields = email,first_name,last_name
plugin.tx_sremailsubscribe.registerPID = 80
plugin.tx_sremailsubscribe.confirmPID = 80
plugin.tx_sremailsubscribe.editPID = 80
plugin.tx_sremailsubscribe.infomailPID = 80
plugin.tx_sremailsubscribe.confirmInvitationPID = 80
plugin.tx_sremailsubscribe.pid = 75
plugin.tx_sremailsubscribe.module_sys_dmail_category_PIDLIST = 75
plugin.feadmin.dmailsubscription.email = myemail at somesite.com
plugin.feadmin.dmailsubscription.emailName = myName
plugin.feadmin.dmailsubscription.pid = 75
plugin.tx_sremailsubscribe.useShortUrls = 1
plugin.tx_sremailsubscribe.confirmType = 0

php.ini:
register_globals = on
allow_url_fopen = on

Extensions installed:
Templavoila 1.0.1, realURL 1.1.0, direct mail subscription, direct mail 
2.1.4

Thank you for your help